#include "add.h"
#include "sub.h"

int main()
{
  int x = 1;
  int y = 2;

  int ret1 = add(1, 2);
  int ret2 = sub(1, 2);

  printf("add: %d\n", ret1);
  printf("sub: %d\n", ret2);
  return 0;
}
